Auto-combustion preparation and characterization of lead titanate nanoparticles by using different acids and its photocatalyst application

摘要

The effect of different acids such as cinnamic acid, salicylic acid, and oxalic acid on size, morphology and uniformity of PbTiO_3 nanoparticles prepared via a auto-combustion sol-gel route was investigated. The structural, morphological, and optical properties of as-obtained products were characterized by techniques such as electron dispersive X-ray spectroscopy, X-ray diffraction, scanning electron microscopy and ultraviolet-visible spectroscopy. The estimated band gap shows that this product may be used as a photocatalyst, so the photocatalytic test was performed by photooxidation of methyl orange under UV irradiation and in the presence of PbTiO_3. The results showed that methyl orange degradation was about 95% under for 50 min, so the synthesized product can be used as an effective photocatalyst. Vibrating sample magnetometer was used to study the magnetism properties of PbTiO_3 sample.